BANGKOK, Dec 12 (The Nation Thailand/ANN): Air pollution in Bangkok's 38 districts hit dangerous levels on Saturday morning with PM2.5 (particulate matter less than 2.5 micrometres in diameter) readings coming in at 39 to 72 micrograms per cubic metre (μg/m3), the Bangkok Metropolitan Administration's Air Quality and Noise Management Division reported.
Thailand’s standard for safe levels of PM2.5 is 50 μg/m3, though the World Health Organisation sets it at 25 μg/m3.
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